Finding the Fourth Proportional to 1,682.22, 2,321.61 and 936.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682.22 : 2,321.61 = 936.34 : x
2. Step 2: Convert to fraction form
   1,682.22/2,321.61 = 936.34/x
3. Step 3: Cross multiply
   1,682.22x = 2,321.61 × 936.34
4. Step 4: Simplify right side
   1,682.22x = 2,173,825.32
5. Step 5: Solve for x
   x = 2,173,825.32/1,682.22
6. Step 6: Final answer
   x = 1,292.24